WO2007130061A1 - Injecteur médical à chargement frontal et seringues correspondantes - Google Patents

Injecteur médical à chargement frontal et seringues correspondantes Download PDF

Info

Publication number
WO2007130061A1
WO2007130061A1 PCT/US2006/017927 US2006017927W WO2007130061A1 WO 2007130061 A1 WO2007130061 A1 WO 2007130061A1 US 2006017927 W US2006017927 W US 2006017927W WO 2007130061 A1 WO2007130061 A1 WO 2007130061A1
Authority
WO
WIPO (PCT)
Prior art keywords
syringe
injector
flexible ring
plunger
connector
Prior art date
Application number
PCT/US2006/017927
Other languages
English (en)
Inventor
David M. Reilly
Mark Trocki
Original Assignee
Medrad, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medrad, Inc. filed Critical Medrad, Inc.
Priority to BRPI0621659-5A priority Critical patent/BRPI0621659A2/pt
Priority to JP2009509521A priority patent/JP5113835B2/ja
Priority to PCT/US2006/017927 priority patent/WO2007130061A1/fr
Priority to KR1020087029998A priority patent/KR101314343B1/ko
Priority to EP06752449.6A priority patent/EP2015800B1/fr
Priority to CN2006800545399A priority patent/CN101437557B/zh
Publication of WO2007130061A1 publication Critical patent/WO2007130061A1/fr
Priority to RU2010150614/14A priority patent/RU2010150614A/ru

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14546—Front-loading type injectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14566—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons with a replaceable reservoir for receiving a piston rod of the pump
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M5/31515—Connection of piston with piston rod

Definitions

  • This invention relates to medical injectors, and syringes, syringe interfaces, syringe adapters and syringe plungers for use therewith. More particularly, the present invention relates to front-loading medical injectors, and syringes, syringe interfaces, syringe plungers and adapters for use with new or existing medical injectors wherein a syringe of special construction is mountable upon and removable from the injectors by a releasable mechanism.
  • the apparatus comprises a rotatable turret which carries a pair of the pressure jackets and which is rotatable so that when one of the pressure jackets, into which a syringe has been rear-loaded, is in an injection position, the other pressure jacket is in a position in which an associated syringe can be rear-loaded. Subsequently, when injection of contrast media from the first syringe is completed, the turret is rotated to move the first syringe to an unloading-loading position, with the second pressure jacket and the syringe concurrently being moved into the injection position.
  • a drive member of the angiographic injector can be drivingly connected to, or disconnected from, a plunger of a syringe at any point along the path of travel of the syringe plunger by a releasable mechanism.
  • the syringe plunger must be properly oriented to mate with the injector piston.
  • the syringe must be correctly aligned within a respective pressure jacket to allow the syringe plunger and the injector piston to connect to and disconnect from each other.
  • the injector described in the '858 patent has a first release mechanism for attaching and releasing the syringe from the injector, hi addition, the apparatus includes a second release mechanism that engages and disengages the injector piston from the syringe plunger. Upon rotation of the syringe, the syringe is attached to or released from the injector and, simultaneously, the plunger is attached to or released from the piston.
  • the structure disclosed requires that the syringe be installed on the injector in a specific orientation so that the syringe can releasably engage the injector and, simultaneously, the plunger can releasably engage the piston, hi addition, as with the syringe disclosed in the '980 patent, during assembly the syringe plunger must be correctly oriented within the syringe.
  • the syringe must be connected to the injector in a specific orientation to assure proper syringe mounting. Proper alignment is required to assure that the syringe may be operated properly during a medical imaging procedure. The required orientation, however, hinders rapid attachment and replacement of the syringe. The required orientation may also increase the manufacturing assembly cost and complexity of the syringe. Accordingly, while the above injector and syringe apparatuses have proven effective, a need has arisen for a simpler front-loading medical injector.
  • a need has arisen for a syringe that can be easily connected to the injector without regard for the specific orientation of the syringe and/or syringe plunger, hi addition, to simplify assembly of the syringe components, a need has arisen for a syringe with a plunger that does not need to be oriented in a specific relation to the barrel or base of the syringe. Furthermore, to minimize the time required to prepare an injector for an injection procedure, a need has arisen for injectors providing automated features and/or improved control features.
  • the present invention provides medical injectors and syringes for use therewith which address the needs that have arisen for a simpler injector and syringe system.
  • the present invention provides, in one aspect, a syringe interface and a mating syringe that cooperate to allow the syringe to be easily, readily and securely fastened to a medical injector.
  • the syringe need not be oriented in any particular manner before being connected to the injector, hi addition, the plunger need not be oriented in any particular manner with respect to the barrel of the syringe.
  • the present invention provides a syringe for use with an injector including a syringe retaining mechanism having a flexible ring.
  • the syringe includes a body having a rearward end and a forward end, a plunger movably disposed within the body and at least one attachment member associated with the body.
  • the attachment member cooperates with the flexible ring of the syringe retaining mechanism to releasably attach the syringe to the injector.
  • the syringe further includes at least one release member associated with the body.
  • the release member is operable to cause deformation of the flexible ring to enable release of the syringe from attachment with the injector upon rotation of the syringe about its axis relative to the injector.
  • the release member is preferably positioned axially forward of the attachment member.
  • 1 ne attachment member can be associated with the rear end of the body.
  • the attachment member can, for example, include a radially outward extending flange encompassing the entire perimeter of the syringe.
  • the attachment member includes a plurality of radially outward extending flanges positioned around the perimeter of the syringe.
  • the attachment flange (or flanges) can also have a sloped rearward surface to facilitate interaction with the flexible ring of the retaining mechanism.
  • the release member can, for example, include a plurality of radially outward projecting members that deform the flexible ring upon rotation of the syringe about its axis to a disengagement position.
  • the attachment member includes a radially outward extending flange encompassing the entire perimeter of the syringe and the projecting members extend radially outward at least the same amount as the attachment member.
  • the projecting members can directly contact the flexible ring to deform the flexible ring.
  • the present invention provides an injector for injecting fluid from a front-loading syringe mounted thereon.
  • the injector includes a housing, a drive member at least partially disposed within the housing and operable to engage a plunger disposed within the syringe, and a syringe retaining mechanism associated with the housing.
  • the syringe retaining mechanism is operable to seat the syringe upon axially rearward motion of the syringe relative to the retaining mechanism, regardless of the orientation of the syringe about the axis of the syringe, hi one embodiment, the retaining mechanism consists essentially of a flexible ring maintained at a fixed axial position within the syringe retaining mechanism.
  • Figure IA illustrates a side view of another embodiment of an injector system of the present invention in a disconnected state
  • Figure IB illustrates a perspective view of the syringe of the injector system of Figure 130A in position to be seated within the syringe interface of the injector system
  • Figure 1C illustrates a front, hidden line view of the syringe of Figure 130A rotated about its axis to be in engagement with the flexible ring of the syringe interface after axially rearward seating of the syringe within the syringe interface;
  • Figure ID illustrates a front, hidden line view of the syringe of Figure 130A rotated about its axis to be in position for disengagement from the flexible ring of the syringe interface;
  • Figure 2 illustrates a rear, perspective view of the flexible ring of Figure 103 disconnected from the syringe interface housing;
  • Figure 3 illustrates a rear, perspective view of the flexible ring of Figure 130 in operative comiection with the syringe interface housing;
  • Figure 4 illustrates an exploded or disconnected perspective view of an embodiment of a piston or drive member of an injector and a cooperating plunger assembly of a syringe;
  • Figure 5 A illustrates a side cross-sectional view and a top, hidden line view of the syringe and the plunger assembly rotated about their common axis to an engagement position
  • Figure 5B illustrates a side cross-sectional view and a top, hidden line view of the syringe and the plunger assembly rotated about their common axis to a disengagement position
  • Figure 6A illustrates a side cross-sectional view and a top, hidden line view of the plunger assembly rotated about its axis to an engagement position relative to the piston;
  • Figure 6B illustrates a side cross-sectional view and a top, hidden line view of the plunger assembly rotated about its axis to a disengagement position relative to the piston;
  • Figure 7A illustrates a side view of a syringe and a connector or syringe interface in which the syringe includes a flexible ring for releasably attaching the syringe to the connector
  • Figure 7B illustrates the syringe and connector of Figure 136A in which the connector is shown in a cutaway view and in which the syringe is releasably connected to the connector;
  • Figure 7C illustrates the syringe and connector of Figure 136A in which the connector is shown in a cutaway view and in which the syringe has been rotated to place the flexible ring in a stressed state for release of the syringe from the connector.
  • Figures IA through 6B illustrate an embodiment of a syringe interface/comiector that releasably secures the syringe to the injector housing.
  • Figures 4 through 6B illustrate an embodiment of an injector piston and syringe plunger interface system/assembly of the present invention that cooperate to axially move the plunger within the syringe.
  • the injector system includes a syringe interface encompassing a connector 4010' for connecting a syringe 4012' to an injector 4014'.
  • syringe interface/connector 4010' provides a mechanism by which a syringe 4012' may be seated quickly relative to an injector 4014' without the requirement for any particular orientation or rotation of the syringe 4012' about its longitudinal axis relative to the injector 4014' during seating.
  • Figure IA illustrates syringe interface/connector 4010' (hereinafter, sometimes referred to as connector 4010', for brevity) of the present invention disconnected from injector 4014'.
  • a rear surface 4016' of connector 4010' attaches to a front surface 4018' of injector 4014'.
  • a front surface 4020' of connector 4010' is adapted to receive a rear end 4022' of syringe 4012'.
  • the connector 4010' may be integrally formed with the injector 4014'.
  • the releasable connection mechanism of connector housing 4024' can include only a generally elliptical flexible ring or flex ring 4026', which is disposed at a fixed axial position within connector 4010' near front end 4020'.
  • flex ring 4026' is referred to herein as generally elliptical, it is clear to one skilled in the art that the shape of flex ring 4026' need not precisely follow the path of an ellipsis.
  • Flex ring 4026' operates in generally a similar manner to flex ring 4026 described above to connect syringe 4012' thereto.
  • flex ring 4026' and syringe 4012' are adapted to cooperate with one another (preferably without intervening or additional elements or components), as described in greater detail below, to permit connection and release of syringe 4012' to and from connector 4010' (and, accordingly, to and from injector 4014').
  • syringe interface or connector 4010' is substantially simplified in construction and operation as compared to connector 4010.
  • Syringe 4012' is, however, also suitable for releasable connection to interface 4010 of injector 4014.
  • Syringe 4012' includes a cylindrical body 4030' with a tapering conical portion 4032' at a front end 4034'. Conical portion 4032' is integrally connected to a discharge end 4036'. Discharge end 4036' is provided with a luer lock 4038' that may be connected to a tube (not shown) that is connected ultimately to the patient (also not shown). Syringe 4012' further includes a flange 4039' that can cooperate with a connector as described in U.S. Patent Application Publication No. 2002-0147429, filed on February 20, 2002, assigned to the assignee of the present invention, the disclosure of which is incorporated herein by reference.
  • syringe 4012' maybe made from any suitable material, such as a polymeric material.
  • syringe 4012' can include a flange 4042', which, when syringe 4012' is connected to connector 4010', helps to prevent contrast medium that may leak from, for example, discharge end 4036' or luer lock 4038', from entering connector 4010'.
  • a ridge or flange 4044' is integrally formed on syringe 4012' to the rear of flange 4042' toward rear end 4022' of syringe 4012'.
  • flange 4044' is formed to be continuous around the perimeter of syringe 4012'.
  • the ridge or flange may be segmented into two or more sections instead of a single continuous member. However, such sections should collectively provide sufficient surface area and strength to retain the syringe 4012 ' on the injector 4014'.
  • ridge 4044' includes two parts, a sloping section 4046' and a shoulder section 4048' that is essentially perpendicular to the exterior surface of cylindrical body 4030'.
  • Two or more extending tabs or projections 4050' are preferably provided forward of shoulder 4048', between shoulder 4048' and flange 4042'. Tabs 4050' engage flex ring 4026' to release syringe 4012' from connection with connector 4010' as further described below.
  • a syringe adapter incorporating the structural components (e.g., ridge 4044', tabs 4050' and/or flange 4042') of the rear end 4022' of syringe 4012' can be fashioned to fit to such a syringe for mounting on the injector of the present invention.
  • an adapter preferably includes structural components complementary to the mounting elements of that syringe.
  • front plate 4054' includes a hole or opening 4058' therethrough.
  • a lip 4060' extends around the periphery of hole 4058' through front plate 4054'.
  • flange 4042' and lip 4060' mate with one another to minimize any leaked contrast medium from entering the interior of connector 4010 ' through hole 4058 '.
  • syringe 4012' may be constructed so that it does not include flange 4042', as would be understood by those skilled in the art.
  • Flange 4042' can also, however, serve an additional function as a mechanical stop when it engages with front surface 4020' of front plate 4054', ensuring proper axial positioning of syringe 4012' with respect to injector 4014'.
  • flex ring 4026' may be made from an acetal copolymer or any other suitable material. As illustrated in, for example, in Figure 2, flex ring 4026' can include, on either side, a linear or flattened portion 4062' that is integrally connected to two curved portions 4064'. As shown, flex ring 4026' includes a hole 4068' therethrough. On a front side of flex ring 4026', one or more chamfered surfaces 4082' can be provided to facilitate insertion of rear end 4022' and ridge 4044' of syringe 4012' therethrough.
  • a rear surface 4096' of front plate 4054' includes an indentation or recess 4098' that has a shape similar to flex ring 4026'.
  • Two notches 4104' are formed in rear surface 4096' of front plate 4054'. Notches 4104' accommodate extensions 4068'of flex ring 4026'.
  • Indentation 4098' is shaped to be larger than flex ring 4026' and a distance between notches 4104' is greater than a distance between extension 4068 when flex ring 4026' is in a relaxed state.
  • Notches 4104' help to prevent flex ring 4026' from rotating within housing 4024', while permitting flex ring 4026' to expand to its extended state as described below.
  • an audible and/or other signal as described above can be provided to indicate to the operator that the syringe 4012' has been installed on the injector.
  • the audible and/or other signal can, for example, be created mechanically or electronically.
  • flex ring 4026' has attached thereto on at least one of generally flat portions 4062' (corresponding generally with the long or major axis of flex member 4026') a magnet 4027' or other element that cooperates with a proximity sensor 4059' (for example, a Hall effect sensor) to determine if flex ring 4026' has returned to its relaxed state, for example, after insertion of syringe 4012'.
  • a proximity sensor 4059' for example, a Hall effect sensor
  • sensor 4059' is in operative connection with the injector control system to prevent operation of injector 4014' if the flex ring is in its extended state (indicating that syringe 4012' is not properly or fully connected to interface or connector 4010'). Sensor 4059' can also trigger an audible and/or other indication that syringe 4012' is properly connected to connector 4010' or that syringe 4012' is disengaged from connector 4010'.
  • projections 4050' preferably extend radially outward at least to the same extent as ridge or flange 4044'.
  • syringe 4012' can be moved axially forward relative to connector 4010' so that ridge 4044' passes forward of flex ring 4026' and syringe 4012' is released from connection to connector 4010'. Similar to the operation of syringe 4012 and connector 4010, syringe 4012' is capable of being fully seated within connector 4010' (that is, moved to its rearwardmost axial position) regardless of the orientation or rotation of syringe 4012' about its axis relative to connector 4010'.
  • Requiring rotation of syringe 4012' to a predetermined position or to within a predetermined range of positions after syringe 4012' is fully rearwardly seated within connector 4010' (or within connector 4010) only minimally increases the operator time required to connect syringe 4012' to connector 4010' as compared to the cooperation of syringe 4012 and connector 4010.
  • use of projections 4050' to effect release of syringe 4012' from connection with connector 4010' enables substantial simplification of connector 4010' as compared to connector 4010.
  • syringe 4012' can be rotated such that projections 4050' are within a range of positions varying over an angle ⁇ of approximately 90° to maintain retaining connection with connector 4010' or with connector 4010.
  • syringe 4012' can be rotated such that projections 4050' are within a range of positions varying over an angle ⁇ of approximately 10° to effect release of syringe 4012' from connection with connector 4010' or with connector 4010.
  • piston 7100 includes a generally elliptical or oval flexible ring 7110 that operates to releasably connect injector piston 7100 to plunger interface assembly 7000.
  • flexible ring 7110 is referred to herein as generally elliptical, it is clear to one skilled in the art that the shape of flexible ring 7110 need not precisely follow the path of an ellipsis.
  • piston 7100 includes a first or rearward member 7120, which includes a seating 7130 for elliptical flexible ring 7110.
  • flexible ring 7110 includes one or more members, such as radially inward extending members 7112, that prevent rotation of flex ring 7110 relative to piston 7100 when flexible ring 7110 is seated in seating 7130.
  • seating 7130 includes a generally cylindrical, axially forward projecting member 7132 over and around which flexible ring 7110 passes to abut with a generally circular ledge 7134.
  • a slot 7136 is formed in member 7132 into which projections 7112 are seated to prevent rotation of flex ring 7110 relative to piston 7100.
  • Piston 7100 can further include a second or forward member 7140 that attaches to rearward member 7120 as illustrated, for example, in Figures 133 through 135B.
  • plunger interface assembly 7000 can be appropriately axially positioned with syringe 4012' and piston 7100 appropriately axially positioned such that the corresponding rearward movement of plunger assembly 7000 with rearward movement of syringe 4012 ' causes piston 7100 to fully seat within plunger assembly 7000 when syringe 4012' fully seats within connector 4010'.
  • piston 7100 can be seated within plunger assembly 7000 separately from the seating of syringe 4012' within connector 4010'.
  • the relative orientation or rotation of plunger assembly 7000 about its axis is preferably irrelevant to the ability of piston 7100 to seat within plunger assembly 7000.
  • plunger assembly includes a base 7005 having a chamfered surface 7010 on a reward end thereof that causes flexible ring 7110 to deform to a stressed state (see Figures 134B and 135B) as necessary to allow flexible ring 7110 to pass forward of ledge 7020 formed around the inner surface of plunger base 7005.
  • flexible ring 7110 is free to return to its relaxed state if plunger base 7005 is rotated about its axis to the position illustrated in Figures 5 A and 6A.
  • plunger assembly 7000 forward of ledge 7020 the generally cylindrical interior wall of plunger base 7005 includes radially inward extending or flattened portions 7030.
  • plunger assembly 7000 When plunger assembly 7000 is rotated about its axis so that flattened portions 7030 are generally aligned with the long or major axis of flexible ring 7110, abutment of flattened portions 7030 with flexible ring 7110 forces flexible ring 7110 into its stressed state as illustrated in Figures 5B and 6B. m this state, piston 7100 can be moved axially rearward relative to plunger assembly 7000 (or plunger assembly 7000 moved axially forward relative to piston 7100) such that plunger assembly 7000 can be disconnected from piston 7100.
  • plunger assembly 7000 is oriented or rotated about its axis within syringe 4012' so that the position of flattened or radially inward projecting portions 7030 are in general alignment with radial outward extending projections 4050' of syringe 4012' as illustrated in Figures 5A and 5B.
  • Plunger assembly 7000 is also preferably positioned within syringe 4012' so that plunger 4012' will not rotate about its axis relative to syringe 4012'. Friction between an elastomeric plunger cover 7040 and the inner wall of the syringe barrel can, for example, prevent rotation of plunger assembly 7000 relative to syringe 4012'.
  • plunger assembly 7000 will be rotated to be in full engagement with piston 7100 as illustrated in, for example, Figure 5 A.
  • flattened portions 7030 of base 7005 will be generally aligned with the long or major axis of flexible ring 7110 as described above, and piston 7100 can be disengaged from plunger assembly 7000.
  • an elliptical or oval flexible ring or flex ring as discussed above can also be positioned within a plunger assembly and the piston can include a cooperating seating in an injector piston and syringe plunger interface system/assembly of the present invention.
  • Such an embodiment can operate in the same manner in which syringe 4012' connects to and discomiects from connector 4010'.
  • FIGS 7A through 7C illustrate another embodiment of a syringe 4012" (shown in portion) interface/connector 4010" that releasably secures syringe 4012" to the injector housing (not shown in Figures 7 A through 7C) such as injector housing 4014'.
  • Syringe 4012" and interface 4010" cooperate in much the same manner as piston 7100 and plunger assembly 7000 described above.
  • syringe 4012" includes flex ring 4044" seated within a recess 4048 formed in a rearward portion of syringe 4012".
  • a rearward portion 4046" of flex ring 4044" can be sloped or beveled to facilitate cooperation with connector 4010" as described below.
  • syringe 4012 is inserted into opening or passage 4011".
  • a forward end 401 Ia" of opening or passage 4011" can be sloped or chamfered to facilitate passing of flex ring 4044" into opening 4011".
  • Syringe 4012 is moved rearward relative to connector 4010" until flex ring 4044" passes beyond ledge 4020" in connector 4010".
  • Syringe 4012" can include flange 4042" to, as discussed above, limit leakage of injection fluids into the injector and/or to assist in proper axial positioning of syringe 4012".
  • the generally cylindrical interior wall of passage 4011" includes radially inward extending or flattened portions 4030".
  • syringe 4012 When syringe 4012" is rotated about its axis so that flattened portions 4030" are generally aligned with the long or major axis of flexible ring 4044", abutment of flattened portions 4030" with flexible ring 4004" forces flexible ring 4044" into its stressed state as illustrated in Figure 7C. In this state, syringe 4012” can be moved axially relative to connector 4010" such that syringe 4012" can be disconnected from connector 4010".
  • Such abutting elements can, for example, operate in the manner similar to extending elements 7112 of flex ring 7110.
  • the foregoing description and accompanying drawings set forth the preferred embodiments of the invention at the present time.
  • Various modifications, additions and alternative designs will, of course, become apparent to those skilled in the art in light of the foregoing teachings without departing from the scope of the disclosed invention.
  • the respective mating connection and release mechanisms on the injectors and the syringes described above may be interchanged.
  • the scope of the invention is indicated by the following claims rather than by the foregoing description. All changes and variations that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

L'invention concerne différents modes de réalisation d'un injecteur, d'un système d'injection, d'une seringue, d'un interface de seringue , d'un adaptateur de seringue, d'un ensemble piston/plongeur pour un injecteur (de produit de contraste, par exemple). De préférence, ladite seringue est configurée pour s'adapter à un mécanisme d'interface de seringue de façon à être placée à l'intérieur d'un injecteur sans être nécessairement orientée dans l'axe de l'injecteur.
PCT/US2006/017927 2006-05-10 2006-05-10 Injecteur médical à chargement frontal et seringues correspondantes WO2007130061A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BRPI0621659-5A BRPI0621659A2 (pt) 2006-05-10 2006-05-10 injetor médico de carregamento frontal e seringa para uso junto ao mesmo
JP2009509521A JP5113835B2 (ja) 2006-05-10 2006-05-10 フロントローディング医療用インジェクタ及びそれとともに用いるシリンジ
PCT/US2006/017927 WO2007130061A1 (fr) 2006-05-10 2006-05-10 Injecteur médical à chargement frontal et seringues correspondantes
KR1020087029998A KR101314343B1 (ko) 2006-05-10 2006-05-10 전방 장착 의료용 주사기 및 그와 함께 사용하는 시린지
EP06752449.6A EP2015800B1 (fr) 2006-05-10 2006-05-10 Injecteur médical à chargement frontal et seringues correspondantes
CN2006800545399A CN101437557B (zh) 2006-05-10 2006-05-10 前加载的医用注射器和与其一起使用的注射管
RU2010150614/14A RU2010150614A (ru) 2006-05-10 2010-12-09 Медицинский инъектор с фронтальной загрузкой и шприцы для использования с ним

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2006/017927 WO2007130061A1 (fr) 2006-05-10 2006-05-10 Injecteur médical à chargement frontal et seringues correspondantes

Publications (1)

Publication Number Publication Date
WO2007130061A1 true WO2007130061A1 (fr) 2007-11-15

Family

ID=38668053

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/017927 WO2007130061A1 (fr) 2006-05-10 2006-05-10 Injecteur médical à chargement frontal et seringues correspondantes

Country Status (7)

Country Link
EP (1) EP2015800B1 (fr)
JP (1) JP5113835B2 (fr)
KR (1) KR101314343B1 (fr)
CN (1) CN101437557B (fr)
BR (1) BRPI0621659A2 (fr)
RU (1) RU2010150614A (fr)
WO (1) WO2007130061A1 (fr)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7666169B2 (en) 2003-11-25 2010-02-23 Medrad, Inc. Syringe and syringe plungers for use with medical injectors
WO2010124961A1 (fr) * 2009-04-30 2010-11-04 Sanofi-Aventis Deutschland Gmbh Connexion ajustable axialement d'une tige de piston à un piston pour un mécanisme d'entraînement dans un dispositif d'administration de médicament
WO2011144604A1 (fr) * 2010-05-18 2011-11-24 Sanofi-Aventis Deutschland Gmbh Ensemble aiguille pour des dispositifs d'administration de médicament
US9173995B1 (en) 2014-10-28 2015-11-03 Bayer Healthcare Llc Self-orienting syringe and syringe interface
US9199033B1 (en) 2014-10-28 2015-12-01 Bayer Healthcare Llc Self-orienting syringe and syringe interface
US9480797B1 (en) 2015-10-28 2016-11-01 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector
US9744305B2 (en) 2012-09-28 2017-08-29 Bayer Healthcare Llc Quick release plunger
US9844622B2 (en) 2000-07-10 2017-12-19 Bayer Healthcare Llc Syringes for medical injector systems
US9855390B2 (en) 2006-03-15 2018-01-02 Bayer Healthcare Llc Plunger covers and plungers for use in syringes
US10251814B2 (en) 2011-02-15 2019-04-09 Cis Pharma Ag Cefuroxime safety delivery system
USD847985S1 (en) 2007-03-14 2019-05-07 Bayer Healthcare Llc Syringe plunger cover
US10792418B2 (en) 2014-10-28 2020-10-06 Bayer Healthcare Llc Self-orienting pressure jacket and pressure jacket-to-injector interface
US10806852B2 (en) 2014-03-19 2020-10-20 Bayer Healthcare Llc System for syringe engagement to an injector
US10835674B2 (en) 2015-11-13 2020-11-17 Bayer Healthcare Llc Nested syringe assembly
US11129934B2 (en) 2014-10-28 2021-09-28 Bayer Healthcare Llc Self-orienting pressure jacket and pressure jacket-to-injector interface
US11191893B2 (en) 2018-01-31 2021-12-07 Bayer Healthcare Llc System and method for syringe engagement with injector
USD942005S1 (en) 2007-03-14 2022-01-25 Bayer Healthcare Llc Orange syringe plunger cover
US11883636B2 (en) 2018-02-27 2024-01-30 Bayer Healthcare Llc Syringe plunger engagement mechanism
US11969582B2 (en) 2017-01-06 2024-04-30 Bayer Healthcare Llc Syringe plunger with dynamic seal
US11998718B2 (en) 2020-06-18 2024-06-04 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector
USD1031029S1 (en) 2003-11-25 2024-06-11 Bayer Healthcare Llc Syringe plunger

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9242040B2 (en) 2009-04-23 2016-01-26 Bayer Healthcare Llc Syringe assemblies, methods of forming syringe assemblies and adapters for forming syringe assemblies
JP5684490B2 (ja) * 2010-04-23 2015-03-11 バイエル メディカル ケア インコーポレーテッド シリンジアセンブリ、シリンジアセンブリを形成する方法、及びシリンジアセンブリを形成するアダプタ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997036635A1 (fr) 1996-03-29 1997-10-09 Medrad, Inc. Adapteur de seringue a chargement frontal pour injecteur medical a chargement frontal
US5782815A (en) * 1995-01-26 1998-07-21 Yuji Yanai Glass cartridge for injection syringe prefilled with pharmaceutical liquid
WO2001037905A2 (fr) 1999-11-24 2001-05-31 Medrad, Inc. Injecteurs, systemes d'injection, seringues et procedes permettant de connecter une seringue a un injecteur
US6582407B1 (en) * 2002-08-16 2003-06-24 M.K. Meditech Co., Ltd. Structural safety design for the prevention of mis-pressing plunger rod into syringe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MXPA02005099A (es) * 1999-11-24 2002-11-07 Medrad Inc Inyector medico y jeringas de carga frontal, interfaces de jeringa, adaptadores de jeringa y vastagos de jeringa para usarse con ellos.
US7273477B2 (en) * 2001-01-18 2007-09-25 Medrad, Inc. Syringe interfaces and syringe adapters for use with medical injectors
US7361156B2 (en) * 2002-12-20 2008-04-22 Medrad, Inc. Pressure jacket system with pivotal locking members

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782815A (en) * 1995-01-26 1998-07-21 Yuji Yanai Glass cartridge for injection syringe prefilled with pharmaceutical liquid
WO1997036635A1 (fr) 1996-03-29 1997-10-09 Medrad, Inc. Adapteur de seringue a chargement frontal pour injecteur medical a chargement frontal
WO2001037905A2 (fr) 1999-11-24 2001-05-31 Medrad, Inc. Injecteurs, systemes d'injection, seringues et procedes permettant de connecter une seringue a un injecteur
US6582407B1 (en) * 2002-08-16 2003-06-24 M.K. Meditech Co., Ltd. Structural safety design for the prevention of mis-pressing plunger rod into syringe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2015800A4 *

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9844622B2 (en) 2000-07-10 2017-12-19 Bayer Healthcare Llc Syringes for medical injector systems
US10894124B2 (en) 2003-11-25 2021-01-19 Bayer Healthcare Llc Medical injector system
US10434249B2 (en) 2003-11-25 2019-10-08 Bayer Healthcare Llc Medical injector system
USD1031029S1 (en) 2003-11-25 2024-06-11 Bayer Healthcare Llc Syringe plunger
US11596735B2 (en) 2003-11-25 2023-03-07 Bayer Healthcare Llc Medical injector system
US9694131B2 (en) 2003-11-25 2017-07-04 Bayer Healthcare Llc Medical injector system
US7666169B2 (en) 2003-11-25 2010-02-23 Medrad, Inc. Syringe and syringe plungers for use with medical injectors
US10668221B2 (en) 2006-03-15 2020-06-02 Bayer Healthcare Llc Plunger covers and plungers for use in syringes
US9855390B2 (en) 2006-03-15 2018-01-02 Bayer Healthcare Llc Plunger covers and plungers for use in syringes
USD847985S1 (en) 2007-03-14 2019-05-07 Bayer Healthcare Llc Syringe plunger cover
USD942005S1 (en) 2007-03-14 2022-01-25 Bayer Healthcare Llc Orange syringe plunger cover
US8585658B2 (en) 2009-04-30 2013-11-19 Sanofi-Aventis Deutschland Gmbh Drug delivery device for delivery of a medicament
CN102802703A (zh) * 2009-04-30 2012-11-28 赛诺菲-安万特德国有限公司 用于给药装置的驱动机构的活塞杆到活塞的可轴向调节的连接
JP2012525172A (ja) * 2009-04-30 2012-10-22 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング 薬物送達デバイスの駆動機構のためのピストンロッドのピストンへの軸方向に調整可能な連結
US10549045B2 (en) 2009-04-30 2020-02-04 Sanofi-Aventis Deutschland Gmbh Drug delivery device for delivery of a medicament
WO2010124961A1 (fr) * 2009-04-30 2010-11-04 Sanofi-Aventis Deutschland Gmbh Connexion ajustable axialement d'une tige de piston à un piston pour un mécanisme d'entraînement dans un dispositif d'administration de médicament
WO2011144604A1 (fr) * 2010-05-18 2011-11-24 Sanofi-Aventis Deutschland Gmbh Ensemble aiguille pour des dispositifs d'administration de médicament
US10251814B2 (en) 2011-02-15 2019-04-09 Cis Pharma Ag Cefuroxime safety delivery system
US9744305B2 (en) 2012-09-28 2017-08-29 Bayer Healthcare Llc Quick release plunger
US10286152B2 (en) 2012-09-28 2019-05-14 Bayer Healthcare Llc Quick release plunger
US11383029B2 (en) 2014-03-19 2022-07-12 Bayer Healthcare Llc System for syringe engagement to an injector
US10806852B2 (en) 2014-03-19 2020-10-20 Bayer Healthcare Llc System for syringe engagement to an injector
US11103637B2 (en) 2014-03-19 2021-08-31 Bayer Healthcare Llc System for syringe engagement to an injector
US9700670B2 (en) 2014-10-28 2017-07-11 Bayer Healthcare Llc Self-orienting syringe and syringe interface
US11419977B2 (en) 2014-10-28 2022-08-23 Bayer Healthcare Llc Self-orienting syringe and syringe interface
US9173995B1 (en) 2014-10-28 2015-11-03 Bayer Healthcare Llc Self-orienting syringe and syringe interface
US9199033B1 (en) 2014-10-28 2015-12-01 Bayer Healthcare Llc Self-orienting syringe and syringe interface
US10512720B2 (en) 2014-10-28 2019-12-24 Bayer Healthcare Llc Self-orienting syringe and syringe interface
US11129934B2 (en) 2014-10-28 2021-09-28 Bayer Healthcare Llc Self-orienting pressure jacket and pressure jacket-to-injector interface
US11577022B2 (en) 2014-10-28 2023-02-14 Bayer Healthcare Llc Self-orienting syringe and syringe interface
US10245375B2 (en) 2014-10-28 2019-04-02 Bayer Healthcare Llc Self-orienting syringe and syringe interface
US10792418B2 (en) 2014-10-28 2020-10-06 Bayer Healthcare Llc Self-orienting pressure jacket and pressure jacket-to-injector interface
US9480797B1 (en) 2015-10-28 2016-11-01 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector
US11547794B2 (en) 2015-10-28 2023-01-10 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector
US10512721B2 (en) 2015-10-28 2019-12-24 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector
US11744948B2 (en) 2015-11-13 2023-09-05 Bayer Healthcare Llc Nested syringe assembly
US10835674B2 (en) 2015-11-13 2020-11-17 Bayer Healthcare Llc Nested syringe assembly
US11969582B2 (en) 2017-01-06 2024-04-30 Bayer Healthcare Llc Syringe plunger with dynamic seal
US11191893B2 (en) 2018-01-31 2021-12-07 Bayer Healthcare Llc System and method for syringe engagement with injector
US11883636B2 (en) 2018-02-27 2024-01-30 Bayer Healthcare Llc Syringe plunger engagement mechanism
US11998718B2 (en) 2020-06-18 2024-06-04 Bayer Healthcare Llc System and method for syringe plunger engagement with an injector

Also Published As

Publication number Publication date
JP2009536548A (ja) 2009-10-15
JP5113835B2 (ja) 2013-01-09
KR20090014199A (ko) 2009-02-06
RU2010150614A (ru) 2012-06-20
EP2015800B1 (fr) 2016-11-16
EP2015800A4 (fr) 2009-05-06
CN101437557B (zh) 2011-09-07
CN101437557A (zh) 2009-05-20
EP2015800A1 (fr) 2009-01-21
KR101314343B1 (ko) 2013-10-04
BRPI0621659A2 (pt) 2011-12-20

Similar Documents

Publication Publication Date Title
EP2015800B1 (fr) Injecteur médical à chargement frontal et seringues correspondantes
US7497843B1 (en) Syringe interfaces, syringe adapters and injector systems
US7691085B2 (en) Syringe interfaces and adapters for use with medical injectors
EP0951306B1 (fr) Seringues preremplissables et injecteurs convenant a de telles seringues
US8628495B2 (en) Power injector syringe assembly
US5944694A (en) Prefillable syringes and injectors for use therewith
EP2114493B1 (fr) Adaptateur universel pour un piston de seringue
DK2808046T3 (en) RELEASABLE CONNECTION MECHANICAL
KR20170074968A (ko) 자기 배향 압력 자켓 및 압력 자켓 대 주입기 인터페이스
JP2002224218A (ja) シリンジ外筒およびシリンダホルダ
WO1998017336A1 (fr) Seringue, injecteur, et systeme d'injecteur
US11998718B2 (en) System and method for syringe plunger engagement with an injector
RU2405574C2 (ru) Медицинский инъектор с фронтальной загрузкой и шприцы для использования с ним
US20120136246A1 (en) Power Injector Syringe Assembly
RU124570U1 (ru) Медицинский инъектор с фронтальной загрузкой и шприцы для использования с ним
RU133736U1 (ru) Шприц для инъекций контрастного вещества (варианты)
RU133735U1 (ru) Шприц (варианты)
CN112672774B (zh) 注入系统、注射器以及密封垫
WO2011019777A2 (fr) Ensemble seringue à injecteur de puissance
US20060111673A1 (en) Angiographic syringe support device and combined use thereof with an angiographic syringe and an angiographic injector

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 06752449

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2006752449

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2006752449

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 8741/DELNP/2008

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 200680054539.9

Country of ref document: CN

Ref document number: 2009509521

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 1020087029998

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2008148592

Country of ref document: RU

ENP Entry into the national phase

Ref document number: PI0621659

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20081110